Hose-coupling.



'ti'iiurrnn srrtrnsritru or .ernten LYMAN S. STACEY, OF QUINCY, MASSACHUSETTS, ASSIGNOR TO WLLAM E. MGKEE, OF BOSTON, MASSACHUSETTS.

nose-coutume.

Specification of Letters Patent.

Application filed, April 29, 1909.

llntentedd nly o, tutti,

serial no. item80.

` particularly to the sof-celled l leading nip ple employed to connect :L pneumatic tool or the like to the flexible hose which convhose when the spring bund is used.

veys the compressed nir to the tool..

In the use of pneumatic tools it is ,tie quently necessary to disconnect the hose trom the-tool, and this oneration has to he performed many times a. day. This results in the rapid deterioration ot the end of the hose which soon gets into such a condition that it. will not remain connected with the nipple. It .is then necessary to cut oliA the end of the hose, thus resulting in Waste und loss of time.

My present, invention provides means for attaching the hose to the nipple in such inanner that the hose willnot become disconnected from the nipple even though the end of the hose hy become very much worn. The tool may be quickly uncoupled from the hose, leaving,f the nose connection in place in Athe hose, or the hose may he quickly attached and detached from the connection. The hose connection is no more expensive to construct than those heretofore in use.

The invention will he fuliy ui'ulerstood from the :following description token in connection with they accompanying drawings, and the novel features will he pointed out and clearly ldefined in the claiin at the close of the specification.

lln theidrawingsihigure l is a longitudinal viewlot a hose connection embodying 1n y invention, the end ot' the hose being' in section., Fig. 2 is a similar view of the saine hose connection employed with a spring hand. Fig. 3 is a View in perspective ot' said spring hand. Fig. ai. illustrates the process of inserting the nipple 4in the end of thc Fig. 5 shows 'the first step in removing the nipple from the hose when the spring hand is employed. Fig. 6 Shows the second step ol. the process of removing the spring hand from the nipple.,

Referring to the drawings, at il is shown the tapering screw-threaded end ot the hone connection intended 'Por insertion into the correspondingly screw-threaded portion of the pneumatic tool. This, portion is preferably provided with right-hand screw-thier ls. Next to thc portion A. is the square or hexagonal portion B adapted for engagement with a wrench. At. C there is shown a second tapering screw-threaded nipple for insertion in the hose D. This portion is provided with n smooth rounded end portion l for insertion in the end di the hose, a nd round screw-threads which run in the opposite direction to those on the other nipple A. in this case the .threads on the nipple C are leitdmnd, since those on nipple A.k are right-hand. The said nipple C and the hexagonal portion B are seperated iroin each other by a constricted por,- ion or neck E. Between the said-ui )ple C and the constricted portion E is pre erably a sha-rp shoulder. i

The hose connection tney loe attached to the end ot the. hose by inserting' the end ot' the nipple (l which is slightly smaller than the here oi the hose in thecnd ot' the hose and then screwing" the nipple in, it necessnry with the aid oit a wrencln until the end of the hose lies against the hexagonal portion li as will hehe/en in Vig. 1 which prevents the'turther movement of the hose. rlhe hose tends to contract at the neck or constricted portion l@ so that the shoulder C hitos into the hose and holds the hose sewe() eurcly in place. This construction is entirely satisfactory :tor use with new hose or with hose which is notI hudly worn, or with. hose. which does not require to he frequently removed. hut. l prefer to employ ar spring' hand such 'For instance as is shown at F in Fig. Ii in Cases where the hose has hecoine hadly worn or softened. rihis springr hand is' inade from properly tempered steel or the like and iuade capahle of placingl consid'- erahle l'nessure upon the hose. .lt has an inside diameter ot' about. thatI ot' theI nipple (l at the shoulder ff, and its ends overlap slightly as Ishown.

\`\'lxen in place. the parts assume the position shown in Fie; the springjhand I" coniprcssh'ltr the hose into theneck or constrictcd. 'portion E. 'To put the hose conncction in place in the end of the hose when the spring hand is employed, the spring.,y

band is xst slipped Jute ibs and of the hose until jt Gccupes n *position a slight dist-ance bac-k of heend of the hose T1@ nipple D is then screwedjnto the hose, causing the spring band te expan until it has passed over the shouder c fier which it is free to contract and H1115 holds the hose firmy into the Decker Constrced poiox E.

To disconnevt the hose emmecten and the hose, the pars are uusmewed for a Sheri distance muti?. in about the position shown in Fig. 5, slipped off' ih@ end of the hose :md i'no the groove farmed bjc the eonstrcted pol-tion E (see Fig. The nose being then free from ihe sp1-ing' band may be exirely un-v screwed.

The hoge eomxeeuou embodying my 1nvenlon esneemlv when Used with a s rm@ x r.

` band holds, he hose very securely, but at the same tune permuta "the hose '0 be deached Quickly if Required. Wl hold its elasteiy as wel? as new Imate.

It wlll be ebsevved that the, threads A :we mgm-hand, whlle the threads C are left- "mnd, and that the thremfls A me intended The Springhnnd is then' hreads en ih, hose were the same i o tendency woud K be draw out of the ha hose, Wham the l th the devee shown xee l,

such tenency. The, nipple oms fec'ijyfftght jnt Wh the hose and. no age occus.

t w be noticed that the spying bimbi is Chumfe'ed. er beve-lef! so that 1 'Y tear the cuter surface, si the bese. ractsn being; put in Vpace, and se that it cannot catch on the chvthes of the. erator, if, for instance as x'equev 01;-

cul's, the mol and atehed hose is thrown Witnesses:

EORGE 

